Standing Classical Female Figure, John Opie, 17611807, British, undated, Black chalk, white chalk, and red chalk on medium, slightly textured, brown laid paper, Sheet: 18 1/8 x 9 1/8in. (46 x 23.2cm) and Sheet: 18 1/4 ? 9 1/8 inches (46.4 ? 23.2 cm),